CN114318925B - Operation method of pulping machine - Google Patents
Operation method of pulping machine Download PDFInfo
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- CN114318925B CN114318925B CN202111580805.4A CN202111580805A CN114318925B CN 114318925 B CN114318925 B CN 114318925B CN 202111580805 A CN202111580805 A CN 202111580805A CN 114318925 B CN114318925 B CN 114318925B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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Abstract
The invention discloses an operation method of a pulping machine, which comprises the following steps: the shell is provided with a containing cavity, and a liquid inlet hole and a liquid outlet hole are formed in the shell; a fixed knife arranged in the accommodating cavity and connected with the shell; the movable knife is arranged in the accommodating cavity and is matched with the fixed knife to form a pulping channel; wherein the liquid inlet hole is communicated with the liquid outlet hole through the pulping channel; the rotating mechanism is used for driving the movable knife to rotate; the moving mechanism is used for driving the movable knife to approach or depart from the fixed knife; the controller is in communication connection with the rotating mechanism and the moving mechanism; and the position sensor is used for detecting the position of the movable knife in real time and is in communication connection with the controller. The invention realizes the real assurance of the pulping quality by stabilizing the constant gap between the movable cutter and the fixed cutter through additionally arranging the position control.
Description
Technical Field
The invention relates to the technical field of pulp treatment equipment, in particular to an operation method of a pulping machine.
Background
With the emphasis of the nation on intelligent manufacturing, low-energy consumption and high-intelligence low-carbon environment-friendly equipment is developed to save labor cost in the actual production process, improve the production efficiency and reduce the average production energy consumption.
A refiner is an essential device for a pulp shop in a paper mill. Pulp fibers are centrifuged by a rotor rotating rapidly and enter a refining zone consisting of the rotor and stator, and the surfaces of the rotor and stator are provided with elongated blades, the fibers move from the rotor grooves through the refining zone to the stator grooves. The fiber passes through the gap, and the phenomena of cutting, pressing, brooming or fuzzing and the like are generated, so that the fiber property is changed.
Whether the gap of the refining blade remains stable or not is a determining factor for determining the fiber processing effect. The pulping machine comprises a movable cutter and a fixed cutter, the motor drives the movable cutter to rotate, and the cutter feeding is realized through the cutter feeding and withdrawing mechanism to realize the needed pulping gap. The power of the feeding process is increased, and the motor power or the current value reflected by the approximate knife clearance is adopted as a parameter to realize control.
In chinese patent application No.: CN201711372781.7 discloses a system and a method for automatically controlling the feeding and withdrawal of a double-disc refiner, which discloses that "when the actual power of the main motor collected by the power transmitter is equal to the set power, the feeding is stopped".
The article "control of refiner consistency" describes "refiner constant power control". The links are as follows: https:// www.docin.com/p-831395945.Html.
In chinese patent application No.: CN201410631486.9 discloses a conical refiner. The technical scheme does not describe how to control the running of the movable cutter.
In chinese patent application No.: CN201910334018.8 discloses a conical refiner with mechanical and hydraulic linkage for adjusting the specific pressure of feeding and retracting and refining. According to the technical scheme, the clearance control is carried out through the adjusting hand wheel fine adjustment nut, the effect is poor, the adjustment is not achieved at all, and the cutter is easy to collide.
At present, the actual power feedback of the motor adopted by the power control mode is compared with the set power to realize the control of the desired refining gap.
The applicant has found that the actual feedback power cannot represent that factors such as actual refining gap, concentration, flow, pressure difference etc. all influence the actual power feedback. After these factors change, the power will change, and the sharpening gap to be reached by the originally set power value will change, so that the precise feeding gap target cannot be realized by the feeding action performed during the power control. Is not a stable sharpening gap, thereby causing the change of pulping quality and being easy to collide with a knife. In view of this, the present application is proposed.
Disclosure of Invention
In order to solve at least one technical problem existing in the background technology, the invention provides an operation method of a pulping machine, which is safe to run and avoids accidents.
The invention provides a method for operating a pulping machine, which comprises a fixed cutter, a movable cutter, a moving mechanism driving the movable cutter to move and a rotating mechanism driving the movable cutter to rotate, and is characterized in that the method comprises the following steps:
after the pulping machine is installed, the moving knife is driven by the moving mechanism to contact with the fixed knife, and the position of the moving knife at the moment is determined to be an initial zero position;
determining that the adjustment zero position is located at the initial zero position;
the moving mechanism is utilized to drive the moving knife to retract at least to a knife retracting position, and the knife retracting position is at least 6mm away from the zero adjusting position;
the rotating mechanism is utilized to drive the movable knife to rotate;
feeding paper pulp, and driving the movable cutter to feed by using a moving mechanism when the movable cutter is determined not to exceed the cutter withdrawal position;
when the movable cutter moves to a fast-slow switching position, the moving mechanism controls the movable cutter to be switched from fast feeding to slow feeding, wherein the fast-slow switching position is positioned between the adjustment zero position and the cutter withdrawing position and is 1.6-2.2mm away from the adjustment zero position;
when the moving knife is fed from the position of switching the speed to the position behind the beating area, the moving mechanism controls the pulse point of the moving knife to move and feed to the position in front of the beating area to stop feeding; wherein the rear position of the beating area is positioned between the adjusting zero position and the tool withdrawal position and is 0.3-0.5mm away from the adjusting zero position; the front position of the beating area is positioned between the adjusting zero position and the tool withdrawal position and is 0.16-0.24mm away from the adjusting zero position; or alternatively, the process may be performed,
stopping feeding when the actual power P of the rotating mechanism is less than or equal to 0.99PS and less than or equal to PS in the process of controlling the moving knife to perform pulse point moving feeding by the moving mechanism; wherein, PS is the preset power of the rotating mechanism.
Preferably, the pulping machine comprises a shell, wherein the shell is provided with a containing cavity, and the shell is provided with a liquid inlet hole and a liquid outlet hole; the accommodating cavity is matched with the fixed knife to form a pulping channel; wherein the liquid inlet hole is communicated with the liquid outlet hole through the pulping channel;
the controller is in communication connection with the rotating mechanism and the moving mechanism;
and the position sensor is used for detecting the position of the movable knife in real time and is in communication connection with the controller.
Preferably, the pulping machine further comprises a travel switch for detecting and feeding back the position state of the moving blade when the moving blade starts feeding, and the travel switch is in communication connection with the controller.
Preferably, the rotation mechanism includes:
a connecting shaft; the first end of the movable knife penetrates through the shell and is connected with the movable knife;
a coupling;
the first motor is connected with the second end of the connecting shaft through the coupler, and the first motor is connected with the controller in a communication mode.
Preferably, a water storage cavity is formed by enclosing the connecting shaft and the shell, and the water storage cavity is positioned at one side of the accommodating cavity; the shell is provided with a water inlet hole and a water outlet hole which are communicated with the water storage cavity.
Preferably, a first sealing ring is arranged at the joint of the connecting shaft and the movable knife.
Preferably, the pulping machine further comprises a bearing, a bearing seat and a bearing shell, wherein the bearing is arranged in the bearing seat; the bearing seat can move relative to the bearing shell;
the connecting shaft is positioned in the bearing, and an oil storage cavity is formed by enclosing the connecting shaft and the bearing seat; and the bearing shell is provided with an oil inlet hole and an oil outlet hole which are communicated with the oil storage cavity.
Preferably, the rotation mechanism includes:
a connecting shaft; the first end of the movable knife penetrates through the shell and is connected with the movable knife;
a coupling;
the first motor is connected with the second end of the connecting shaft through the coupler, and the first motor is connected with the controller in a communication mode.
Preferably, when the actual power P of the rotating mechanism is greater than the PS; or when the moving knife is fed to the limit position, the moving mechanism controls the moving knife to retract at least to the retracting position;
the limit position is positioned at one side of the adjustment zero position, which is close to the tool withdrawal position, and the limit position is 0.08-0.12mm away from the adjustment zero position.
Preferably, when the movable blade is positioned in front of the beating area and the actual power P of the rotating mechanism is smaller than 0.97PS, the zero position is adjusted by 0.08-0.12mm towards the fixed blade direction.
The beneficial effects brought by one aspect of the invention are as follows:
the invention realizes the real assurance of the pulping quality by stabilizing the constant gap between the movable cutter and the fixed cutter through additionally arranging the position control. The problem that the constant gap cannot be ensured due to the influence of fluctuation of factors such as flow, concentration, pressure and the like of slurry in the traditional power control mode is avoided.
Drawings
FIG. 1 is a top view of the present disclosure;
fig. 2 is a front view of the present disclosure.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other; the following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left" and "right", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the positions or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 1 and 2, the operation method of the pulping machine provided by the invention comprises the following steps:
a shell 1, which is provided with a containing cavity 101, wherein the shell 1 is provided with a liquid inlet 103 and a liquid outlet 104; a stationary knife 2 disposed in the accommodating chamber 101 and connected to the housing 1; a movable knife 3 arranged in the accommodating cavity 101 and matched with the fixed knife 2 to form a pulping channel; wherein, the liquid inlet 103 is communicated with the liquid outlet 104 through the pulping channel; a rotating mechanism for driving the movable knife 3 to rotate; the moving mechanism is used for driving the movable knife 3 to approach or depart from the fixed knife 2; a controller 14 in communication with the rotating mechanism and the moving mechanism; and the position sensor 4 is used for detecting the position of the movable knife 3 in real time and is in communication connection with the controller 14.
The pulping machine further comprises a travel switch for detecting and feeding back the position state of the movable blade 3 when the movable blade starts feeding, and the travel switch is in communication connection with the controller 14.
The invention is used for detecting the position of the movable knife 3 in real time by arranging the position sensor 4 and sending data to the controller 14. And a travel switch is additionally arranged, double protection is realized, and whether the moving knife 3 is at least at a withdrawal position or not is detected when in knife feeding, so that safe knife feeding is ensured. The controller 14 may use a DCS system, and the position sensor 4 and the travel switch transmit detected data to the DCS system. The DCS system controls the movement mechanism and the rotating mechanism to act.
Further, the rotating mechanism includes:
a connecting shaft 5; the first end of the movable knife is connected with the movable knife 3 through the shell 1; a coupling 6; the first motor 7 is connected with the second end of the connecting shaft 15 through the coupler 6, and the first motor 7 is in communication connection with the controller 14. The first motor 7 is utilized to drive the coupler 6 and the connecting shaft 15 to rotate, and the movable knife 3 is driven to rotate.
Further, a water storage cavity 102 is formed by enclosing the connecting shaft 15 and the housing 1, and the water storage cavity 102 is located at one side of the accommodating cavity 101; the shell 1 is provided with a water inlet hole and a water outlet hole which are communicated with the water storage cavity 102. Water is introduced through the water inlet holes, high pressure is formed in the water storage cavity 102, and paper pulp in the accommodating cavity 101 is prevented from entering the water storage cavity 102. The connection shaft 15 can be cooled.
Further, a first sealing ring is arranged at the joint of the connecting shaft 15 and the movable knife 3. Avoiding leakage.
The pulping machine further comprises a bearing 8, a bearing seat 9 and a bearing shell 10, wherein the bearing 8 is arranged in the bearing seat 9; the bearing housing 9 is movable relative to the bearing housing 10; the connecting shaft 15 is positioned in the bearing, and forms an oil storage cavity with the bearing seat 9 in a surrounding manner; the bearing shell 10 is provided with an oil inlet hole and an oil outlet hole which are communicated with the oil storage cavity.
Further, the moving mechanism includes:
a nut 11 connected to the bearing seat 9; a screw 12 screwed with the nut 11; and a second motor 13 is in transmission connection with the screw 12 and is in communication connection with the controller 14. The second motor 13 is used for driving the screw rod 12 to rotate, driving the nut 11 to move, and then driving the connecting shaft 15 to horizontally move through the bearing seat 9, so that the moving knife 3 is driven to feed or retract.
A method of operating a refiner comprising:
after the pulping machine is installed, the moving knife is driven by the moving mechanism to contact with the fixed knife, and the position of the moving knife at the moment is determined to be an initial zero position; and determining that the adjustment zero position is positioned at the initial zero position.
The moving mechanism is utilized to drive the moving knife to retract at least to a knife retracting position, and the knife retracting position is at least 6mm away from the zero adjusting position; this example is 8mm. The distance is safer, and the waste of travel is avoided.
And the rotating mechanism is utilized to drive the movable knife to rotate.
Feeding paper pulp, and driving the movable cutter to feed by using a moving mechanism when the movable cutter is determined not to exceed the cutter withdrawal position;
when the movable cutter moves to a fast-slow switching position, the moving mechanism controls the movable cutter to be switched from fast feeding to slow feeding, wherein the fast-slow switching position is positioned between the adjustment zero position and the cutter withdrawing position and is 1.6-2.2mm away from the adjustment zero position; this example is 2mm.
When the moving knife is fed from the position of switching the speed to the position behind the beating area, the moving mechanism controls the pulse point of the moving knife to move and feed to the position in front of the beating area to stop feeding; wherein, the position behind the beating area is located between the adjusting zero position and the tool withdrawal position, and is 0.3-0.5mm away from the adjusting zero position, and the embodiment is 0.4mm. The front position of the beating area is positioned between the adjusting zero position and the tool withdrawal position and is 0.16-0.24mm away from the adjusting zero position; in this example 0.2mm. Or alternatively, the process may be performed,
stopping feeding when the actual power P of the rotating mechanism is less than or equal to 0.99PS and less than or equal to PS in the process of controlling the moving knife to perform pulse point moving feeding by the moving mechanism; wherein, PS is the preset power of the rotating mechanism.
When the actual power P of the rotating mechanism is greater than the PS; or when the moving knife is fed to the limit position, the moving mechanism controls the moving knife to retract at least to the retracting position;
the limit position is positioned at one side of the adjustment zero position close to the tool withdrawal position, and the distance between the limit position and the adjustment zero position is 0.08-0.12mm, which can be 0.1mm.
When the movable cutter is positioned in the front of the beating area and the actual power P of the rotating mechanism is smaller than 0.97PS, the zero point adjusting position is adjusted to be 0.08-0.12mm, which can be 0.1mm, towards the fixed cutter direction.
After the new pulping machine is installed, debugging is carried out, and the movable cutter is contacted with the fixed cutter, at the moment, the position of the movable cutter is determined to be an initial zero position. Assume that the position sensor reads 20.13mm.
And meanwhile, determining the initial zero position of the adjustment, namely the initial zero position. At this time, the zero point position is adjusted to correspond to the reading of the position sensor by 20.13mm.
After debugging, the moving knife is driven by the moving mechanism to retract at least to the retracting position. In this embodiment, the retracting position is 8mm from the adjustment zero position. Thus, the retracting position corresponds to a reading of 12.13mm from the position sensor.
In this embodiment, the moving blade may be retracted a little farther beyond the retracted position. In one embodiment, the reading of the corresponding position sensor after the knife pushing is 12.11mm.
During operation, pulp is fed in. When the moving knife is determined not to exceed the knife withdrawing position, the DCS system controls the moving mechanism to drive the moving knife to feed rapidly, and controls the rotating mechanism to drive the moving knife to rotate.
When the moving knife moves to the fast-slow switching position, the moving mechanism controls the moving knife to be switched from fast feeding to slow feeding. The fast feed and slow feed of this embodiment refer to different feed speeds, and specific values of the speed are not specified.
When the cutter is fed to the rear position of the beating area, the moving mechanism controls the pulse point of the moving cutter to move the cutter to the front position of the beating area. When the movable knife is positioned at the rear position of the beating area, careful feeding is needed, and the pulse point movable feeding can be performed by feeding 0.05mm each time. After each feeding, judging whether the actual power P is less than or equal to PS of the rotating mechanism which is less than or equal to 0.99PS and moves to the front position of the beating area. And stopping feeding when the movable cutter moves to the front position of the beating area or the actual power P of the rotating mechanism is smaller than or equal to 0.99PS and smaller than or equal to PS.
Multiple experiments prove that when the movable cutter is positioned in front of the beating area, the actual power P of the rotating mechanism is basically 0.99 x PS-PS. So controlled that a constant refining blade gap is ensured.
By employing a power and position co-operation interlock for control, it is necessary to stop the feed when 0.99PS is less than or equal to the actual power P is less than or equal to PS of the rotating mechanism. When the moving blade moves to the position in front of the beating area, the feeding needs to be stopped regardless of the actual power P of the rotating mechanism. Therefore, the movable cutter can be safely protected from collision.
The prior art mostly compares the actual power P of the rotating mechanism with PS for moving blade control. In actual situations, the actual power P of the rotating mechanism may not reach 0.99×ps even if the moving blade collides with the fixed blade due to the decrease of the pulp flow rate. In the prior art, power control is always performed, and a person skilled in the art does not know why power control is performed with a striking blade or a poor pulping effect, and does not know why the power control is performed. The tool retracting device is matched with power control and position control, and can retract in time through position limitation. The movable cutter can be adjusted in time, so that the constant pulping gap is ensured, and the situation can be effectively avoided.
When the actual power P of the rotating mechanism is greater than the PS; or when the moving knife is fed to the limit position, the moving mechanism controls the moving knife to retract at least to the retracting position; wherein, the liquid crystal display device comprises a liquid crystal display device,
the limit position is positioned between the adjusting zero position and the tool retracting position, and the distance between the limit position and the adjusting zero position is 0.08-0.12mm, which can be 0.08, 0.09, 0.1, 0.11 and 0.12mm. The present embodiment may be 0.1mm
When the moving blade is stopped at the position before the beating area, if an abnormality occurs, such as an increase in pulp concentration, the actual power P of the rotating mechanism increases, and when it is greater than PS, the blade retracting process is required. When the pulp consistency decreases or the pulp flow suddenly decreases. The moving blade is subjected to the pressure reduction of the pulp, and then, as the refiner itself is installed with an installation gap, the moving blade is fed a small distance in the direction of the stationary blade. However, when the movable knife is positioned in front of the beating area, the distance between the movable knife and the fixed knife is originally small, and if the situation occurs, the knife is easy to collide. There is conventionally no way to avoid this by means of power control.
By setting the limit position, the moving knife is driven to retract rapidly by the moving mechanism immediately as long as the moving knife is fed to the limit position, so that the collision of the moving knife is avoided. Position control is additionally arranged, so that accurate gap control of the movable knife and the fixed knife is ensured.
The position control is also carried out on the limit position, the front position of the beating area, the rear position of the beating area and the cutter withdrawal position, the running of the movable cutter is flexibly adjusted, the pulping effect is ensured, and the safety accident is avoided.
With the abrasion of the movable knife, the embodiment can also effectively carry out compensation adjustment.
When the movable cutter is positioned in front of the beating area, if the actual power P of the rotating mechanism is found to be always smaller than 0.97PS. Thus, the abrasion of the movable knife is judged, and the movable knife needs to be adjusted. Then the zero position is adjusted by 0.08-0.12mm towards the fixed cutter direction. In this example, each adjustment was 0.1mm. At this time, the zero point adjustment position is not at the initial zero point position, and is 0.1mm away from the initial zero point position. Correspondingly, the limit position, the front position of the beating area, the rear position of the beating area and the cutter withdrawal position are correspondingly adjusted, so that the distance between adjacent blades is ensured.
If the movable blade is found to be positioned in front of the beating area again, the actual power P of the rotating mechanism is always smaller than 0.97PS, and then the adjustment is performed again. So that the pulping quality can be effectively ensured.
Of course, when the distance between the zero adjustment position and the initial zero position is greater than a preset value, reminding is needed. At this time, the movable cutter is seriously worn and needs to be replaced.
For example, after a period of use, the zero point position is adjusted to correspond to a reading of 55.50mm. Correspondingly, the reading 55.40mm corresponding to the limit position, the reading 55.30mm corresponding to the front position of the beating area, the reading 55.10mm corresponding to the rear position of the beating area and the reading 53.5mm corresponding to the fast and slow switching position. The movable knife is positioned in front of the beating area and corresponds to reading 55.30mm.
The adjustment amount of the adjustment zero point position relative to the initial zero point position is 55.50-20.13= 35.37mm. I.e. the wear of the moving blade 35.37mm. If the preset value is 35.37mm. When the corresponding reading of the zero point position is 55.50, reminding is needed at the moment if the actual power P of the rotating mechanism when the movable knife is positioned behind the beating area is always smaller than 0.97PS, and the movable knife is seriously worn and needs to be replaced.
The embodiment realizes that the refining quality is truly ensured by stabilizing the gap between the movable cutter and the fixed cutter through additionally arranging the position control. The problem that the constant gap cannot be ensured due to the influence of fluctuation of factors such as flow, concentration, pressure and the like of slurry in the traditional power control mode is avoided.
Meanwhile, the position control can effectively avoid the problems of rapid abrasion and the like caused by contact of the movable knife and the fixed knife in the running process, so that the service lives of the movable knife and the fixed knife are fundamentally prolonged, the cost input of vulnerable parts is reduced, and the movable knife and the fixed knife have the function of prompting the life cycle of the vulnerable parts, thereby being beneficial to planning shutdown of factories.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (10)
1. The operation method of the pulping machine comprises a fixed cutter, a movable cutter, a moving mechanism driving the movable cutter to move and a rotating mechanism driving the movable cutter to rotate, and is characterized in that the method comprises the following steps:
after the pulping machine is installed, the moving knife is driven by the moving mechanism to contact with the fixed knife, and the position of the moving knife at the moment is determined to be an initial zero position;
determining that the adjustment zero position is located at the initial zero position;
the moving mechanism is utilized to drive the moving knife to retract at least to a knife retracting position, and the knife retracting position is at least 6mm away from the zero adjusting position;
the rotating mechanism is utilized to drive the movable knife to rotate;
feeding paper pulp, and driving the movable cutter to feed by using a moving mechanism when the movable cutter is determined not to exceed the cutter withdrawal position;
when the movable cutter moves to a fast-slow switching position, the moving mechanism controls the movable cutter to be switched from fast feeding to slow feeding, wherein the fast-slow switching position is positioned between the adjustment zero position and the cutter withdrawing position and is 1.6-2.2mm away from the adjustment zero position;
when the moving knife is fed from the position of switching the speed to the position behind the beating area, the moving mechanism controls the pulse point of the moving knife to move and feed to the position in front of the beating area to stop feeding; wherein the rear position of the beating area is positioned between the adjusting zero position and the tool withdrawal position and is 0.3-0.5mm away from the adjusting zero position; the front position of the beating area is positioned between the adjusting zero position and the tool withdrawal position and is 0.16-0.24mm away from the adjusting zero position; or alternatively, the process may be performed,
stopping feeding when the actual power P of the rotating mechanism is less than or equal to 0.99PS and less than or equal to PS in the process of controlling the moving knife to perform pulse point moving feeding by the moving mechanism; wherein, PS is the preset power of the rotating mechanism.
2. The method of claim 1, wherein the refiner comprises a housing having a receiving chamber, the housing having a liquid inlet and a liquid outlet; the accommodating cavity is matched with the fixed knife to form a pulping channel; wherein the liquid inlet hole is communicated with the liquid outlet hole through the pulping channel;
the controller is in communication connection with the rotating mechanism and the moving mechanism;
and the position sensor is used for detecting the position of the movable knife in real time and is in communication connection with the controller.
3. The method of claim 1, further comprising a travel switch for detecting and feeding back a position of the moving blade when the moving blade starts feeding, the travel switch being communicatively connected to the controller.
4. A method of operating a refiner as claimed in claim 1, wherein the rotating mechanism comprises:
a connecting shaft; the first end of the movable knife penetrates through the shell and is connected with the movable knife;
a coupling;
the first motor is connected with the second end of the connecting shaft through the coupler, and the first motor is connected with the controller in a communication mode.
5. The method of claim 4, wherein a water storage chamber is defined between the connecting shaft and the housing, the water storage chamber being located on one side of the receiving chamber; the shell is provided with a water inlet hole and a water outlet hole which are communicated with the water storage cavity.
6. The method of claim 4, wherein a first seal ring is provided at a junction of the shaft and the moving blade.
7. The method of claim 4, wherein the refiner further comprises a bearing, a bearing housing, a bearing shell, the bearing being mounted in the bearing housing; the bearing seat can move relative to the bearing shell;
the connecting shaft is positioned in the bearing, and an oil storage cavity is formed by enclosing the connecting shaft and the bearing seat; and the bearing shell is provided with an oil inlet hole and an oil outlet hole which are communicated with the oil storage cavity.
8. A method of operating a refiner as claimed in claim 7, wherein said rotating mechanism comprises:
a connecting shaft; the first end of the movable knife penetrates through the shell and is connected with the movable knife;
a coupling;
the first motor is connected with the second end of the connecting shaft through the coupler, and the first motor is connected with the controller in a communication mode.
9. A method of operating a refiner according to claim 1, characterized in that when the actual power P of the rotating mechanism is greater than the PS; or when the moving knife is fed to the limit position, the moving mechanism controls the moving knife to retract at least to the retracting position;
the limit position is positioned at one side of the adjustment zero position, which is close to the tool withdrawal position, and the limit position is 0.08-0.12mm away from the adjustment zero position.
10. The method according to claim 1, wherein the zero position is adjusted by 0.08-0.12mm in the direction of the stationary blade when the movable blade is located in front of the beating zone and the actual power P of the rotating mechanism is less than 0.97PS.
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| CN202111580805.4A CN114318925B (en) | 2021-12-22 | 2021-12-22 | Operation method of pulping machine |
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| CN202111580805.4A CN114318925B (en) | 2021-12-22 | 2021-12-22 | Operation method of pulping machine |
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| FR1060677A (en) * | 1952-07-30 | 1954-04-05 | Neyret Beylier Atel | Further training in pulp refining equipment |
| JPS6128095U (en) * | 1984-07-25 | 1986-02-19 | 株式会社精工舎 | alarm clock |
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| JP2003112069A (en) * | 2001-10-09 | 2003-04-15 | Mitsubishi Paper Mills Ltd | Method of controlling double disk refiner |
| CN107974857B (en) * | 2017-12-19 | 2023-05-23 | 郑州运达造纸设备有限公司 | Automatic control system and method for feeding and retracting blades of double-disc pulping machine |
| CN110093801A (en) * | 2019-04-24 | 2019-08-06 | 华南理工大学 | A kind of machine, liquid linkage adjust the conical refiner of forward and back knife and defibrination than pressure |
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2021
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| GB425644A (en) * | 1933-11-09 | 1935-03-19 | Joseph Edwards Bond | Improvements in or relating to paper making |
| CN102828432A (en) * | 2012-08-13 | 2012-12-19 | 李�昊 | Batch refiner and refining process thereof |
| CN207659782U (en) * | 2017-12-19 | 2018-07-27 | 郑州运达造纸设备有限公司 | A kind of double disc refiner is into withdrawing automatic control system |
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| CN114318925A (en) | 2022-04-12 |
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